Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
vasoconstriction
This term describes a physiological response where blood vessels tighten, reducing the diameter of the lumen. It is primarily associated with the body's attempt to maintain homeostasis, such as diverting blood flow toward vital organs during shock or preventing heat loss in freezing environments.
As a technical medical term, it is used almost exclusively in clinical, biological, or pharmacological contexts. It carries a neutral, descriptive connotation, though it is often discussed in the context of pathology when the process occurs abnormally, such as in certain hypertensive disorders.
Meanings
Examples
Cold causes vasoconstriction.
Cold causes vasoconstriction.
Stress triggers vasoconstriction.
Stress triggers vasoconstriction.
Severe vasoconstriction can lead to tissue hypoxia.
The patient showed signs of peripheral vasoconstriction.
The patient showed signs of peripheral vasoconstriction.
Cold water immersion triggers immediate vasoconstriction.
The mechanism of vasoconstriction regulates systemic blood pressure.
Adrenaline promotes systemic vasoconstriction to redirect blood flow.